CN101891432B - Permeable crystalline waterproof coating - Google Patents
Permeable crystalline waterproof coating Download PDFInfo
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- CN101891432B CN101891432B CN2010102265348A CN201010226534A CN101891432B CN 101891432 B CN101891432 B CN 101891432B CN 2010102265348 A CN2010102265348 A CN 2010102265348A CN 201010226534 A CN201010226534 A CN 201010226534A CN 101891432 B CN101891432 B CN 101891432B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5076—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with masses bonded by inorganic cements
- C04B41/5079—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00267—Materials permeable to vapours or gases
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Paints Or Removers (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a permeable crystalline waterproof coating, which is prepared from the following components in percentage by weight: 30 to 65 percent of portland cement, 24 to 36 percent of quartz sand, 5 to 16 percent of filler, 1 to 4 percent of calcium ion compound, 1.5 to 4 percent of crystal precipitator, 1.5 to 3 percent of complexing aid, 1 to 3 percent of film forming aid, 0.4 to 1.6 percent of complexing agent, 0.4 to 2 percent of polycarboxylic acid water reducer and 0.2 to 0.4 percent of methylcellulose. The permeable crystalline waterproof coating has good penetration, andcan grow insoluble crystals in capillary pores and microcracks on the surface of the concrete to block the capillary pore channels and the microcracks so as to improve the permeability of the concrete and fulfill the aims of resisting water and blocking leakage. The permeable crystalline waterproof coating can be widely applied to anti-permeability and waterproof construction of cellars, tunnels,subways, swimming pools, roof squares, toilets and the like.
Description
Technical field
The invention belongs to building material technical field, relate to a kind of compsn, the penetration crystallization type water proofing paint that particularly a kind of buildings waterproof is used.
Background technology
Concrete is a kind of heterogeneous body, porous, and has microfissue structure, shaggy hypertonicity material.It can pass through the kapillary planar water, and this process usually is accompanied by the absorption to objectionable impurities.With regard to water, water can cause material generation frost and thaw, if the erosion that divided by water in air will make base material suffer the heavily stressed of alternation of wetting and drying, causes surface cracking, and fissured generation and development will cause objectionable impurities to be invaded; The material that is dissolved in the water, particularly cl ions can destroy the passivation layer of rebar surface, cause catastrophic corrosion; Water can be carried pollutent and dust secretly, makes structures stained; Water also can make salinity by the internal migration of material to outside, thereby make structures surface weathering and produce salt efflorescence.The various degradation mechanism of comprehensive concrete structure can know that nearly all chemistry and physical process that influences concrete structure durability all relates to two principal elements, i.e. water and its migration in concrete pore and crack.Therefore, take surface waterproofing to prevent water intrusion in the external environment, to improving concrete durability, guaranteeing that concrete appearance is clean very important to concrete structure.
Water-proof material is numerous at present, mainly is divided into two types according to the effect waterproof, i.e. film-forming type (physics mode) coating and osmosis type (chemical mode) coating.Film-forming type is to utilize protective coating self film forming to stop that corrosive medium gets into concrete, and the concrete protection effect and the film forming character of shape of this coatingformed are closely related, and it is good and bad that the character quality of film directly influences concrete durability.Osmosis type coating is meant that waterproof paint infiltrates inside concrete; Generate new material with the hydrated cementitious product generation complex physico-chemical in the cement stone hole; This new material has stronger hydrophobic nature; Can change the wetting angle of cement stone pore wall and water, and then effectively prevention is the corrosive medium intrusion of carrier with water.
Conventional waterproof coating such as pitch, epoxy resin, urethane, vinyl resin and ethenoid resin etc., through at concrete surface brushing certain thickness, can the oversite concrete surface, stop up concrete pore, thereby reach the purpose that stops extraneous moisture to be invaded.But because concrete surface is capped, hole is blocked, itself is airtight, when moisture is discharged internally, can the water-proof coating on surface be broken through, and causes the coating and the lost of life thereof.In addition, these conventional waterproof materials have the shortcoming that self is difficult to overcome, and in physical environment, can wear out, fade and peel off like long-term exposure, and alkali resistance is poor, sticking power is little, self poor durability, inhale ash etc. easily.Use wider a kind of novel penetration crystallization type water proofing paint in recent years; Have advantages such as self-healing ability is strong, good penetrability, cohesive strength height, easy construction; Such waterproof paint is a cement-base waterproof coating, mainly is made up of cement, silica sand and active chemistry, wherein the existing many kinds of active chemistry; Materials such as organosilicon particulate, lipid acid, potassium permanganate, yellow soda ash for example; But most of in these materials have certain action of rust to mortar or steel bars in concrete, and introduced a large amount of potassium metals, sodium etc. and will strengthen mortar or concrete alkali, causes the reduction of self inherent strength.
Summary of the invention
The object of the present invention is to provide a kind of penetration crystallization type water proofing paint, possess surface enhancings, anti-carbonization, anti-hazardous medium infiltration function simultaneously, and have characteristics such as be prone to construct, cost is low.
The applicant finds after deliberation: the major cause of concrete structure deterioration is the intrusion of water; Also comprise simultaneously the objectionable impurities that is dissolved in the water; Thereby cause the concrete surface cracking; Causing inside concrete damage, especially cl ions or carbonic acid gas is that carrier is invaded inside concrete with water, can cause inner reinforcing bar generation corrosion and concrete generation carbonization.
Based on above-mentioned research; The present invention is coated with thinking outward with cement based penetration crystallization type water proofing paint and is the basis, as main film-forming components, and selects suitable film coalescence aid with cement; Increase the toughness of cement based penetration crystallization type water proofing paint; Concrete surface is strengthened, and effective blocking concrete capillary-size pore, surface and tiny crack, the intrusion of outer water and other hazardous mediums stoped; Introduce high osmotically active silicon additive and complexing agent simultaneously; Be penetrated into inside concrete through carrier; Physical-chemical reaction takes place in pore, generate water-fast complicated and confused shape xln, sealing inside concrete pore and microfracture; Thereby the effectively shutoff intrusion of water that comes from the outside, play block water, waterproof effect.
Concrete technical scheme of the present invention is following:
A kind of penetration crystallization type water proofing paint, formulated by following compositions in weight percentage:
Silicate cement 30%～65%
Silica sand 24%～36%
Filler 5%～16%
Ionic calcium cpd 1%～4%
Crystalline deposit agent 1.5%～4%
Complexing auxiliary agent 1.5%～3%
Film coalescence aid 1%～3%
Complexing agent 0.4%～1.6%
Polycarboxylic acids dehydragent 0.4%～2%
Methylcellulose gum 0.2%～0.4%
The optimum weight percentage of each component of the present invention is:
Silicate cement 42%
Silica sand 30%
Filler 16%
Ionic calcium cpd 3%
Crystalline deposit agent 2%
Complexing auxiliary agent 3%
Film coalescence aid 1%
Complexing agent 1.2%
Polycarboxylic acids dehydragent 1.6%
Methylcellulose gum 0.2%
The preferably refining silica sand of above-mentioned silica sand, fineness order number is 100～200 orders;
Above-mentioned filler preferred powder coal ash or silicon ash;
Preferred dihydrate gypsum of above-mentioned ionic calcium cpd or calcium hydroxide;
Preferred nanometer water glass of above-mentioned crystalline deposit agent or sodium methyl silicate;
Preferred Triple Pressed Stearic Acid of above-mentioned complexing auxiliary agent or StAl;
Preferred PVA of above-mentioned film coalescence aid or polyvinyl acetate adhesive;
Preferred Bing Xisuandingzhi of above-mentioned complexing agent or polyacrylic ester;
The method of use of penetration crystallization type water proofing paint of the present invention is: at first clear up concrete surface; Remove greasy dirt or other foreign material of concrete surface; To the concrete surface watering, make concrete surface be in saturated surface dry condition, then penetration crystallization type water proofing paint is brushed to concrete surface; After the brushing surface drying, carry out second time brushing.
The contained crystalline deposit agent of the present invention, complexing agent, complexing auxiliary agent etc. may penetrate into the inside concrete hole; And generate insoluble crystalline product with hydrated cementitious product reaction; Stop up the concrete capillary-size pore; Play closely knit waterproof effect, and the film forming auxiliary agent can further play the hydrophobic waterproof effect to the concrete base laminar surface.
High reactivity silicon powder, ionic calcium cpd and aluminium salt etc. that the present invention introduces help improving top layer mortar or concrete density, weather resistance and corrosion stability, and waterproof paint itself is reached the matrix mortar or concrete almost has no spinoff.
The present invention promotes endurance performance of concrete from surface strengthening, three aspects of impervious and anti-carbonization; Use brushing technique, consumption is little, and without surface drying, constructing operation is simple; Simultaneously, because the present invention is mainly used in the early concrete surface strengthening or repair in concrete later stage crack, all after concrete hardening, use, so can not have a negative impact to hydrated cementitious in the concrete and admixture use etc.
Among the present invention as a kind of waterproof that is used for concrete structure and moistureproof same with being coated with the formula waterproof paint outward; Can be widely used in impervious, waterproof constructions such as vault, tunnel, subway, swimming pool, square, roof, toilet, be a kind of penetration crystallization type water proofing paint efficiently.
Embodiment
Further specify the present invention below in conjunction with embodiment.
Penetration crystallization type water proofing paint of the present invention; Form by silicate cement, silica sand, filler, ionic calcium cpd, crystalline deposit agent, complexing auxiliary agent, film coalescence aid, complexing agent, polycarboxylic acids dehydragent, methylcellulose gum; Can select rational component ratio according to performance requriements, obtain required performance product.In the practical implementation process, can pay the utmost attention to following scheme.
Embodiment 1
The weight percentage of each component of present embodiment is:
Silicate cement 45%
Silica sand 40%
Filler 5%
Ionic calcium cpd 2%
Crystalline deposit agent 2%
Complexing auxiliary agent 1.5%
Film coalescence aid 3%
Complexing agent 0.4%
Polycarboxylic acids dehydragent 0.8%
Methylcellulose gum 0.3%
Wherein filler is a flyash, and ionic calcium cpd is a dihydrate gypsum, and the crystalline deposit agent is a nano level silicic acid sodium, and the complexing auxiliary agent is a Triple Pressed Stearic Acid, and film coalescence aid is a PVA, and complexing agent is a Bing Xisuandingzhi.
Embodiment 2
The weight percentage of each component of present embodiment is:
Silicate cement 42%
Silica sand 30%
Filler 16%
Ionic calcium cpd 3%
Crystalline deposit agent 2%
Complexing auxiliary agent 3%
Film coalescence aid 1%
Complexing agent 1.2%
Polycarboxylic acids dehydragent 1.6%
Methylcellulose gum 0.2%
Wherein filler is the silicon ash, and ionic calcium cpd is a calcium hydroxide, and the crystalline deposit agent is a nano level silicic acid sodium, and the complexing auxiliary agent is a Triple Pressed Stearic Acid, and film coalescence aid is a PVA, and complexing agent is a Bing Xisuandingzhi.
Embodiment 3
The weight percentage of each component of present embodiment is for being:
Silicate cement 30%
Silica sand 36%
Filler 16%
Ionic calcium cpd 4%
Crystalline deposit agent 4%
Complexing auxiliary agent 3%
Film coalescence aid 3%
Complexing agent 1.6%
Polycarboxylic acids dehydragent 2.0%
Methylcellulose gum 0.4%
Wherein filler is the silicon ash, and ionic calcium cpd is a calcium hydroxide, and the crystalline deposit agent is a nano level silicic acid sodium, and the complexing auxiliary agent is a StAl, and film coalescence aid is a polyvinyl acetate adhesive, and complexing agent is a polyacrylic ester.
Embodiment 4
The weight percentage of each component of present embodiment is:
Silicate cement 65%
Silica sand 24%
Filler 5%
Ionic calcium cpd 1%
Crystalline deposit agent 1.5%
Complexing auxiliary agent 1.5%
Film coalescence aid 1%
Complexing agent 0.4%
Polycarboxylic acids dehydragent 0.4%
Methylcellulose gum 0.2%
Wherein filler is the silicon ash, and ionic calcium cpd is a calcium hydroxide, and the crystalline deposit agent is a sodium methyl silicate, and the complexing auxiliary agent is a StAl, and film coalescence aid is a polyvinyl acetate adhesive, and complexing agent is a polyacrylic ester.
Embodiment 5
The weight percentage of each component of present embodiment is for being:
Silicate cement 42%
Silica sand 32%
Filler 15%
Ionic calcium cpd 2.5%
Crystalline deposit agent 1.5%
Complexing auxiliary agent 2%
Film coalescence aid 3%
Complexing agent 0.8%
Polycarboxylic acids dehydragent 1.0%
Methylcellulose gum 0.2%
Wherein filler is the silicon ash, and ionic calcium cpd is a dihydrate gypsum, and the crystalline deposit agent is a sodium methyl silicate, and the complexing auxiliary agent is a StAl, and film coalescence aid is a polyvinyl acetate adhesive, and complexing agent is a polyacrylic ester.
Correlation test and result
With the penetration crystallization type water proofing paint of embodiment 1-5, carry out the simultaneous test of concrete strength, impervious and carbonation properties, test-results is following:
1, concrete strength test, the result sees table 1.
Each embodiment concrete strength test result of table 1
| Embodiment | 7d ultimate compression strength (MPa) | 28 ultimate compression strength (MPa) |
| Benchmark | 42.40 | 56.81 |
| Embodiment 1 | 42.98 | 57.53 |
| Embodiment 2 | 44.67 | 58.85 |
| Embodiment 3 | 43.26 | 57.29 |
| Embodiment 4 | 44.38 | 59.25 |
| Embodiment 5 | 43.13 | 57.61 |
Table 1 data show: the present invention can improve concrete crushing strength in the different length of times, but raising trend is not obvious.Owing to contain high infiltration component in the penetration crystallization type water proofing paint of the present invention; Can be penetrated into the inside concrete hole through carrier, and generate insoluble xln, stop up the capillary-size pore with the hydrated cementitious product; Make concrete more closely knit; And then the raising concrete strength, but because to be penetrated into the active substance that inside concrete reacts less relatively, so it is not obvious to improve intensity trend.
2, concrete impermeability test, the result sees table 2.
Each embodiment concrete impermeability experimental result of table 2
Table data 2 show that adopt penetration crystallization type water proofing paint of the present invention, concrete anti-permeability performance gets a promotion, and show as displacement flux and reduce, and the RCM chloride diffusion coefficient reduces; Seepage water pressure increases, and gas permeability coefficient reduces.Penetration crystallization type water proofing paint of the present invention is painted on concrete surface; Its inner hypertonicity crystalline deposit agent and complexing agent infiltrate in the concrete capillary-size pore, react with the hydrated cementitious product, generate insoluble xln and stop up pore; Shutoff cl ions, water and gas get into the passage of inside concrete; From outer barrier the intrusion of hazardous mediums such as cl ions, protected the intact of concrete inner structure, strengthened concrete anti-permeability performance.
3, concrete carbonation test, the result sees table 3
Each embodiment concrete carbonization depth experimental result of table 3
| Embodiment | 7d carbonation depth (mm) | 28d carbonation depth (mm) |
| Benchmark | 10.6 | 14.2 |
| Embodiment 1 | 9.6 | 12.6 |
| Embodiment 2 | 8.4 | 12.4 |
| Embodiment 3 | 10.0 | 13.1 |
| Embodiment 4 | 9.8 | 12.3 |
| Embodiment 5 | 8.1 | 12.7 |
Table 3 data show: adopt the present invention can strengthen concrete anti-carbonization ability.Penetration crystallization type water proofing paint of the present invention is painted on concrete surface; Active substance wherein infiltrates into inside concrete; Reacting with the hydrated cementitious product generates insoluble xln and stops up pore, and then has promoted the ability of the anti-carbonization of top layer concrete, and film-forming components forms the fine and close protection structure of one deck at concrete surface layer in addition; Hinder the intrusion of carbonic acid gas, strengthened the concrete anti-carbonization ability in top layer.
Table 1-3 data show, adopt the present invention that concrete strength development can effectively be promoted, concrete penetrating quality and anti-hazardous medium invade performance all be improved significantly, concrete anti-carbonation properties all is significantly improved simultaneously.
Claims (9)
1. penetration crystallization type water proofing paint is characterized in that by following compositions in weight percentage formulated:
Silicate cement 30%～65%
Silica sand 24%～36%
Filler 5%～16%
Ionic calcium cpd 1%～4%
Crystalline deposit agent 1.5%～4%
Complexing auxiliary agent 1.5%～3%
Film coalescence aid 1%～3%
Complexing agent 0.4%～1.6%
Polycarboxylic acids dehydragent 0.4%～2%
Methylcellulose gum 0.2%～0.4%.
2. penetration crystallization type water proofing paint according to claim 1 is characterized in that each composition weight percentage composition is following:
Silicate cement 42%
Silica sand 30%
Filler 16%
Ionic calcium cpd 3%
Crystalline deposit agent 2%
Complexing auxiliary agent 3%
Film coalescence aid 1%
Complexing agent 1.2%
Polycarboxylic acids dehydragent 1.6%
Methylcellulose gum 0.2%.
3. penetration crystallization type water proofing paint according to claim 1 and 2 is characterized in that said silica sand is refining silica sand, and fineness order number is 100～200 orders.
4. penetration crystallization type water proofing paint according to claim 1 and 2 is characterized in that said filler is flyash or silicon ash.
5. penetration crystallization type water proofing paint according to claim 1 and 2 is characterized in that said ionic calcium cpd is dihydrate gypsum or calcium hydroxide.
6. penetration crystallization type water proofing paint according to claim 1 and 2 is characterized in that said crystalline deposit agent is nanometer water glass or sodium methyl silicate.
7. penetration crystallization type water proofing paint according to claim 1 and 2 is characterized in that said complexing auxiliary agent is Triple Pressed Stearic Acid or StAl.
8. penetration crystallization type water proofing paint according to claim 1 and 2 is characterized in that said film coalescence aid is PVA or polyvinyl acetate adhesive.
9. penetration crystallization type water proofing paint according to claim 1 and 2 is characterized in that said complexing agent is Bing Xisuandingzhi or polyacrylic ester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102265348A CN101891432B (en) | 2010-07-14 | 2010-07-14 | Permeable crystalline waterproof coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102265348A CN101891432B (en) | 2010-07-14 | 2010-07-14 | Permeable crystalline waterproof coating |
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| Publication Number | Publication Date |
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| CN101891432A CN101891432A (en) | 2010-11-24 |
| CN101891432B true CN101891432B (en) | 2012-07-18 |
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| CN2010102265348A Active CN101891432B (en) | 2010-07-14 | 2010-07-14 | Permeable crystalline waterproof coating |
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| CN102417334B (en) * | 2011-08-25 | 2012-12-26 | 清华大学 | Reaction-type concrete water-proof powder and preparation method thereof |
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| CN101759414A (en) * | 2009-12-18 | 2010-06-30 | 河南省绿韵建材有限公司 | Cementitious capillary crystalline waterproofing agent |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101759414A (en) * | 2009-12-18 | 2010-06-30 | 河南省绿韵建材有限公司 | Cementitious capillary crystalline waterproofing agent |
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